Churn



R. W. DAVIS. I CHURN.

N 10566 Patented Feb. 28, 1854.

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irEDsTAT s PATENT oFF oE. 1 v

ROBERT W. DAVIS, OF RODGERSVILLE, NEW Y ORK.

GHURN'.

Specification of Letters Patent No. 10,566, dated February 28, 1854.

Figure 1, represents a vertical longitudinal section of the churnthrough the center, the dasher being shown in elevation,

and as prepared or adjusted for working the butter in the churn. Fig. 2,is a vertical transverse section of the same, the dasher being shown inblack lines as adjusted for working the butter after it has beenproduced, and in red lines as adjusted for Working the cream before thebutter is produced. Fig. 3, is an end elevation of the dasher, separatefrom the churn, and folded or prepared for working the butter to expelthe buttermilk. Fig. 4, is a vertical transverse section of the dasherunfolded or adjusted for agitating the cream for the production ofbutter.

Similar letters of reference in each of the several figures, indicatecorresponding parts.

The nature of my invention consists in so constructing the dasher, thatit may be adjusted by the resistance of the cream in revolving throughit, so as to present six centripetal cutting or agitating blades to thecream, and then, after the butter is produced, to be adjusted, so as topresent but two centrifugal gathering blades, which gather the butter,work it into rolls, and expel the buttermilk therefrom, in the mostperfect manner.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation more minutely.

A, represents the dasher; it is composed of six blades or agitatorsthoselettered, a, a, being secured fast on the main end pieces, B, whichsupport the other parts of the dash These blades revolve with the endpieces, B, B, which are hung on the short journals, or axes, cl, d. Theother blades, lettered b, b, and 0, 0, are secured fast on the dividedend pieces, C, C, in the manner shown in the drawing said pieces beingplaced diagonally to the pieces, B, B, and

each of their sections are hung loosely on pins, 6, e, which are seteccentric to the axis of the dasher. The blades, 6, 0, are sohung andbear such relation to each other, as shown plainly in the drawing, thatone operates upon the other or upon the end pieces, upon which it ishung, when the dasher' is turned in the direction of the arrow, 2, andthe cream strikes it as indicated by the arrow, 3, which end pieces, asthey are operated upon, cause each blade to separate from the other, orvall of them to change their position at one time, from that shown inFigs. 1, 2, and 3, and occupy the position shown in red lines in Fig. 2,and in black lines in Fig. 4. When 'the'blades occupy this position theyserve effectually for agitating and throwing the cream toward the centerof the churn, until it is converted into butter. By dividing the endpieces, C, C, diagonally in the line of a cima reversa, the edges of theblades are always brought in contact with them, and cause them to open'as above described, or to close together as shown in Fig. 3. The bladesall close'at once when the dasher is turned in the direction of thearrow, 1, and the butter strikes them as indicated by the arrow, 4. Whenthey are thus closed, they serve effectually for gathering thebutterworking it-into rolls, and expelling the buttermilk therefrom.-The blades are set at differentangles, consequently they all strike thecream at difi'erent points as they revolve; and agitate it morethoroughly. The blades, 0, '0, have a greater curvature given them inline of a scroll, than those, b, b, as seen in the drawing.

tion of the curve of the blades, 6, Z), as seen in the drawing. tureprevents the dasher throwing the butter toward the center of the churn,while I gathering and working it, which cannot be efi'ectedsoi perfectlyin any churn in use, as

by this,-there being nochance for the edges I This increased curvaturecommences; from the .termlna-v 95 This increased curva- I of the blades,0, c, to take hold of the buta, b, 0, so that the dasher may be adjust-I ed, by the resistance of the cream in rethe butter, Working it intorolls, and exvolving through it, so as to present six cenpelling thebuttermilk therefrom; substa-n- J0 tripetal custinlg oritgitafilngbbltatdesfo the tially as described.

duced to be adjusted, by reversing the rho- ROBERT DAVIS tion of thedasher, and through the resist- Witnesses:

ance of the butter, so as to present but two WM. L. SMITH,

centrifugal gathering blades for gathering WV. S. WRIGHT.

